Submerged filtering-chamber for public water-supply



(No Model.)

I H. G. TEACHER 8: G, H. BREYMANN.

SUBMERGED FILTERING CHAMBER FOR PUBLIG WATER SUPPLY.

No. 342,652. Patented May 25, 1886.

L Witnesses, Inventors.

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UNITED STATES- PATENT ()rricia HORACE G. THAOHER AND GEORGE H. BREYMANN,OF TOLEDO, OHIO.

I SUBMERGED HLTERlN G-CHAMBER FOR PUBLIC WATER-SUPPLY.

SPECIFICATION forming part of Letters Patent No. 342,652, dated May 25,1886.

Application filodJaunary 8, 1886. Serial No. 187,969. (No model.)

her for Public ater-Supp y, of which the following is a specification.

Our invention relates to improvements in submerged filtering-chambersfor public water-supply, inconjunction with a flow-back arranged toreverse the water-pressure for the purpose of cleaning the filteringmaterial;

and the objects of our improvements are,

first, to provide a submerged filtering-chamber designed to beconstructed in the bed of a river, lake, or other source ofwater-supply, completely underneath the surface of the water, andsoar-ranged that the water, in, enter-' ing the filtering-chamber,cannot carry the filtering material with it into said filteringchaniber;second, to construct in such form that when material of light specificgravity is used in the construction of said submerged filtering-chamberthe filtering material 011 the outsides will hold the saidfiltering-chamber in position in case the filling over the top of saidfiltering-chamber should become removed; and, third, to provide aflow-back for the purpose of cleaning the filtering material. e attainthese objects by the mechanism illustrated in the accompanying drawings,in which- Figure 1. is a side elevation of the filteringchamber and aview of the arrangement of the flow-back. Fig. 2 is a longitudinalsection of the filtering-chamber 011 the line 3 4, Fig. 3; and Fig. 3 isa cross-section of the filtering-chamber on the line 1 2, Fig. 1, also aView showing the position of the filtering ma terial on the outside ofthe filtering-chamber.

Similar letters refer to similar part-s th roughout the several views.

The deck A, posts B, caps I), and the sills E, secured together,constitute the frame-work of the filtering-chamber. The slats F, withthe spaces G between said slats F, form the inlets through which thewater enters the filtering-chamber. The conduit H conveys the -watcrfrom the filtering-chamber to a pump or a pump-well. The flow-back Jconveys water back to the filtering-chamber from a stand-pipe,reservoir, or other head by opening the valve-gate K and closing thevalvegate I, thereby forcing the water out through the spaces G and upthrough the filtering material L, washing the sediment from saidfiltering material.

The sloping sides shown in Fig. 3 form a resistance against thefiltering material L, deposited on the outside of the filtering-chamber,which holds the said chamber in position in case'the filling over thetop of the filteringchamber should become removed,

We propose to carry out our invention by excavating a cavity in the bedof a river, lake, or other source of water-supply and constructing thefiltering-chamber therein below low-water mark, and filling around thesides and ends and over the top with broken stones, gravel, and sand, orwith other suitable filtering material; or to construct thefiltering-chamber on the bed of a river, lake, or other source ofwater-supply, then filling around and over the said filtering-chamberwith filtering material, as above mentioned.

we propose to construct the filtering chanlber of the size and capacityrequired to collect an adequate supply of water for the place wheredesigned to be used. This can be done either by building it in onecontinuous crib, or it may be done by constructing a number of shortcribs and joining them together to make one or more continuousfiltering-chambers.

\Ve propose to reverse the flow of the water through the flow-back J,conduit H, and inlets G to the filtering-chamber under a pressureobtained from a stand-pipe, reservoir, or other head, for the purpose ofcleaning the filtering material L.

\Vhat we claim as our invention, and desire to secure by letters Patent,1's- 1. The combination, in a filter, of a filtering-chamber providedwith a series of inclined slats presenting a series of inclinedopenings, whereby water, when drawn through said slatted portion, willpass in an upward direction into the said chamber, substantially as terthrough said pipe H to the filtering-eham-' shown. her, substantially asset forth.

2. The combination, in a filter, of rv closed filtering-chamber,inclined slats arranged in 5 the sides of said chamber, a pipe, H,through J J which water is drawn from said filtering-. \Vitnesses:chamber; and a second pipe intersecting said CLARENCE BROWN, pipe H, forcausing a reverse current of wa- I EDWARD H. RHOADES.

